Drawing pipes

...

The thermal losses can also be added to the pipes. If you click on the pencil on the right in the main parameter list, the pop-up shown below will appear. The classes that can be selected are based on the German standard DIN EN 12828. 

...

The isolation value changes depending on the pipe diameter, this is shown in the table below for class 1 to class 6. The thermal losses will be calculated during a dynamic simulation in the function of the pipe length, pipe diameter, isolation class, and environment temperature.

...

But this is a very time-consuming job, therefore we advise using the isolation classes.

The numbers below represent the overall Heat coefficient per meter pipe length in W/(m*K). To get the total heat transfer coefficient of the whole pipe segment in (W/K), simply multiply by the pipe length.

...